Initialize bean value from another bean (once)

Question

I would like to set a value of bean from another bean once a page is displayed. The target dataTable is included because it is also used in another context. Like I said before, there are two beans involved:

• bean1 'gets' a parameter, will load an object and display some properties.
• bean2 is the bean that is responsible for the filtering / search in the dataTable.

relevant parts:

<f:metadata>
  <f:viewParam name="objectId" value="#{bean1.objectId}" />
</f:metadata>
<!-- resolving works -->
#{bean1.object.name}

included search:

<p:dataTable>...<p:inputText value="#{bean2.value}">...</p:dataTable>

How to assign (a substring of) bean1.object.name to the value of the input text once at page request but keep the existing value attribute of the field? I don't want to mess up the included page but would prefer to solve it "outside" in my including jsf/xhtml file.

Answer 1

The best way to do this is using javascript.
Define a input hidden tag to hold the value of #{bean1.object.name}.
Now in javascript get the value of this field using document.getElementById("").value
Take the substring and assign to input text field using javascript.